United States House of Representatives election 2018 — Results
Election day: November 6, 2018
- Democratic Party: 53.41%, 235 seats
- Republican Party: 44.85%, 199 seats
About this election
The electoral system
All 435 seats were contested, as every two years, each elected by first-past-the-post in a single-member district; 218 seats are needed for a majority. Because the chamber is composed of hundreds of separately drawn districts rather than statewide contests, this page presents the national popular vote and the resulting composition of the House rather than a single regional map.
Compiled and reviewed from official results by ElectioMap. See our data methodology.
In numbers
- 8.56 points separated Democratic Party from Republican Party — 9,710,275 votes.
- Democratic Party converted 53.41% of the vote into 235 of 435 seats (54.02%), 0.61 points more than its vote share.
- Democratic Party moved +6.11 points against the 2016 House of Representatives election (47.30% → 53.41%).
Calculated from the official figures on this page and from the other elections of this type in our archive.
Understanding this election
- How a Constituency Map Gets Built — what happens when no boundary file matches the districts
- How We Check an Election Figure — the checks every number passes before publication
- How Live Election Data Is Collected and Verified — from ballot box to published figure